Environmental Conditions 176 LCD back light (Time until the brightness drops by 50%) 30,000 hours or longer (25 2C) Touch panel Tap durability: 10 million times or more (Tap on the same position with a polyacetal pen (tip: R0.8) with writing pressure of 2.45 N {250 gf}.) Temperatures/ humidity Operating 0 to 40C {32 to 104 F}, 20 to 80%RH (no condensation) 80 60 (%) Humidity 40 20 0 30 40 Temperatures (C) Storage When packed (ink not loaded): -20 to 60C, 5 to 85%RH (no condensation) -20 C or 60 C {-4F or 140 F}: up to 120 hours Ink loaded: -20 to 40C {-4to 104 F} -20 C {-4F}: up to 120 hours 0 to 30 C {32to 86 F}: up to 6 months 40 C {104F}:
up to a month Pressure (elevation) Operating 850 to 1060 hPa (approximately 0 to 1500 m above sea level) Not operating (including in transportation) 850 to 1060 hPa (approximately 0 to 1500 m above sea level) Acoustic noise During operation (including using the autocutter) Approximately 54 dB (ANSI Bystander position) (Based on Epson evaluation conditions including the use of the autocutter)